Edmund l



(No Model.)

B. L. ZALINSKI.

MAGNETO ELBGTRIG FUSE. No. 384,662.

Patented June 19, 1888.

Attorney,

WITNESSES UNITED S A E T PATEN .Orrrcn. v

EDMUND L. ZALIINSKI, on ran UNITED s'rA'rEs ARM L MAoNsTo-ELsormo FUSE.

SPECIFICATION forming part Of Letter! Patent NO. 384,662, dated June-d9, 1888.

7 Application filed November-4 1887. Serial K0.254.EB5. (No model.)

To all ichcm, [lmu-y concern:

Be it known that 1, EDMUND L. Zamssm,

' lieutenant of artillery, United States Army,

stationed at Fort Hamilton, in the Stateof New Ii? ork, have inventcdccrtain new and useful Improvements in lifagncto-Electric Fuses, of which the followingis a specification, reference being had therein to.the accompanying drawings. g

This invention relates to magneto-electric and similar fuses for projectiles and torpedoes.-

The invention consists in the connection of an electric primerlor firingv device of wellknown construction with a magneto device for producing an electric circuit.

1 have heretofore patented numhen-oLde-U Taken in eon-- vices relating to electric, fuses. nection with said patents the present invention will bemore readily understood.

Figure l is a longitudinal section of a shell, showing location of front and rear fuses. Fig.

2 is a longitudinal section of "a shell containing elect-r0 magnet. Fig. 3 is a section of front fuse having electr'o-magnct and connections. Fig. 4 is a modification showing solenoid arrangement for magneto current. l

in the drawings, A indicates a fuse-basing for the base of a shell, and B a fuse for the point of a shell. Both these fuses may be used in a shell at the same time. In practice with large sliclls'chm-ged with high cxplosivcs'l generally use more than one fuse for certainty of action.

In the casing A there isahorseshoeor other magnct,--C, heldin an insulating-cup, D. The magnet is surrounded hy a coil of insulated -wires, E, the ends of the wires leading to an electric-primer, l", the primer heingof common V v construction in fuses of this class.

The ends of the magnet 0 hold an armature, G, which armature may be of considerable weight. This armature tits in the casing in such manner as to have a. forward movement when released from the magnet C. The front of the armature by preference has a firing-pin or projectin'gpoint in line with a fulmin'atechargc, H,

which-coin municates with adetouati ngcharge, I, covered by a cap, at metal or rubber, K, at

, the front of the 6189-; Whenflhis fuseis applied. to the base of a shell, the armature will remain in contact'r'wit'h the magnet until the concussion of striking a. target causes the an .mature to move'forward. The movement of the armature causes a magneto-electric cur rent to pass through the wires and explode the primer F. Atthc same time the armature acts in usual manner as mpercussionstriker.

In the fuse B, which operates on the same general principle, the armature G is'fixed and the magnet C is mademovable by means of a spindle, M, extending from the front of the fuse. When the spindle is driven in, as 'by striking a target, the magnet and armature are separated and an electromagnetic current is induced through the wires'E' E, which wires are connected with anelectric primer in, usual manner. J

The modification shown-at B illustrates a fuse irrwhich a sliding plunger, 0, passing through the magnetic wire E, induces a current leading to the primer. The weight or .plunger 0 is temporarily secured to the fuseease by a weak fastening, P, so that theshock of striking will break the fastening and permit the weight to move in its coil, acting in principle much as a solenoid.

It will be apparent that many other modL-i' fications can bereadily devised by a skilled"- clectrician from the'snggestions above. I there.-

fore do'not' desire to limit myself to precise constructions, but expect my claims to cover.

equivalents in all cases. p

It is apparent that the magnet itself maybe the plunger-to act as a striker in the percussion-fuse, and that it' will operate as a percussion-fuse whether the electric primer be pres cut or not.

I claim 1. Aprojectilc containing a magneto-electric fuse: consisting, essentially, of a magnet and armature movable relatively to each other and an electric circuitclosing through a primer, said circuit being closed by the re lease of the armature from the magnet, the combi nation being and operating substantially as described. Y

2. In a shell-fuse, the eombinatiouof a coil and magnet and armature movable relatively to each other, and conductors leading from the magnet to an electric primer in the shell.

3. Inashe'll-fuso, the combination of a coil and maguet,'an armature' and-a projecting spindle in position to separate the armature end magnet, substantially as described.

4. The combination, in ashcll-fuse, ofa magnet'and a coil of wire in proximity to thesamc,

5 an electric primer connected to the coil, and

an armature acting as a. plunger held to the magnetby the magnetic attraction butdetached by concussion, as set forth.

5. In combination with the usual elements 10 of ashell-fnse, adetonating-plunger held intposition in the shell away from the detonator by magnetic attraction, but in position to be detached and permitted to act as a striker when the shell strikes, as set forth.

In testimony whe eof I alfix my signature in r 5 presence of two witnesses.

- EDMUND L. ZALINSKI. \Vitnesses:

PHILIL- lA J'R0, W. A. BARTLETT. 

